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Child - Wikipedia
The United Nations Convention on the Rights of the Child defines child as, "A human being below the age of 18 years unless under the law applicable to the child, majority is attained earlier." [11]

CHILD Definition & Meaning - Merriam-Webster
In contemporary English, kid is neither slang nor improper. It is, however, most definitely informal, so those writing professionally or in a formal register might prefer to use child.

CHILD Definition & Meaning | Dictionary.com
A child is a young person who's typically older than a baby but younger than a teen. As a child, you probably had your parents watching over you as you played in a sandbox.

Outline of childhood - Wikipedia
The following outline is provided as an overview of and topical guide to childhood: Children – biologically, a child (plural: children) is generally a human between the stages of birth and puberty. Some definitions include the unborn (termed fetus). [1] The legal definition of "child" generally refers to a minor, otherwise known as a person younger than the age of majority. "Child" may also ...

CDC's Developmental Milestones | Learn the Signs. Act Early ...
Skills such as taking a first step, smiling for the first time, and waving “bye bye” are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move. Learn about the developmental milestones that most babies do by two months of age.

Child development | Definition, Stages, & Facts | Britannica
Child development is the progressive maturation of perceptual, emotional, intellectual, and behavioral functions from the early stages of language acquisition, typically around one or two years of age, to the onset of adolescence, at about 12 or 13 years.

CHILD | English meaning - Cambridge Dictionary
CHILD definition: 1. a boy or girl from the time of birth until he or she is an adult, or a son or daughter of any…. Learn more.

Child - definition of child by The Free Dictionary
1. a person between birth and full growth; a young boy or girl. 2. a son or daughter. 3. a baby or infant.

Child - Definition, Meaning & Synonyms | Vocabulary.com
A child is a young person who's typically older than a baby but younger than a teen. As a child, you probably had your parents watching over you as you played in a sandbox.

child - Wiktionary, the free dictionary
child (plural children or (dialectal or archaic) childer) (broadly) A person who has not yet reached adulthood, whether natural (puberty), cultural (initiation), or legal (majority).